So I looked on here for any recent updates on the rear diff whine. I did not see anything. So anyone have any luck getting it taken care off? My dealer looked at mine and said it was normal. My 2007 did not do this. This truck was really quite till around the 7k mile mark. My whine is from around 58 to 65 where you spend most of your time. I can hear it above the radio when listing to the news. I don't understand how they can say this normal, I did not purchase a 1950 log truck! Other than the whine I love my truck! I am 59 so this was going to be my last truck, but I don't know now. The whine or howl is starting to really get to me.